Book 3 - Alexander Fleming's Penicillin Promise: Dr. K's Portal Through Time
- nicolasmercadovald
- Dec 19, 2025
- 3 min read
5 Star Review

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Editorial Book Review:
By TJ Brown
Before the first chapter even starts, Alexander Fleming's Penicillin Promise makes it clear why it matters. It makes one of the most important medical discoveries in history into something that young readers can really feel like they are a part of. What makes this book different is that it doesn't just show science as a collection of facts; it also shows it as a story made up of curiosity, luck, and hard work.
This book makes you feel like you're being let in on a secret that changed the world. There is excitement in the time travel, but there is also a quiet awe in how slowly the discovery happens. The experience is both fun and makes you think. You feel the excitement of discovery and how easily things can go wrong. It makes people think, notice, and wonder, often without them even knowing they're learning.
The main themes of the story are curiosity, determination, and the power of paying attention. The notion that a missed opportunity can preserve lives extends well beyond Fleming's laboratory. These themes speak to both kids and adults. They remind us that asking questions is often how we move forward, not getting answers right away.
Katherine's writing, which is characterized by warmth, confidence, and a smooth, effortless flow, draws you in. She uses time travel as a conceptual bridge, rather than a gimmick, to effectively reconcile history and fantasy. Her descriptions vividly animate scientific locations, and her dialogue is friendly and engaging while remaining sufficiently profound.
One especially memorable moment is the realization that a small observation can ripple outward to save millions of lives. Scenes where the children grasp the weight of what they are witnessing give the story emotional pull and lasting impact.
This book leaves readers with more than knowledge. It leaves them with curiosity and courage. It is a reminder that discovery belongs to anyone willing to look closely, and that alone makes it worth reading.
About the Author
Dr. Katherine E.A Korkidis

Dr. Katherine E.A. Korkidis, known as Dr. K, has led a distinguished career that bridges the realms of science, academia, and literature. With a PhD in Biophysical Chemistry complemented by dual Master's degrees in Chemical Physics and Physical Chemistry, Dr. Korkidis initially embarked on a vibrant career in industry. Her scholarly background enabled her to engage in original research while her acumen in business was honed with an MBA in International Business and Marketing.
Her career took her across various international borders, allowing her to teach, develop new technologies, and travel extensively through the US, Canada, Europe, Russia, and the Far East. This period not only enriched her professional life but also deepened her appreciation for cultural diversity and the power of education.
Despite her success in the scientific community, Dr. Korkidis found her true calling in the art of teaching and writing, which led her back to academia. Her passion for history and storytelling eventually paved the way for a second career as an author. Choosing historical fiction as her primary genre, she penned her debut novel, "Josette," which was released in 2021. Since then, Dr. Korkidis has been prolific, authoring eight books across various genres including Contemporary Sweet Romance, an Anthology of Short Stories, Historical Fiction, and Literary Fiction.
Her literary contributions have not gone unnoticed. "The KEAK Anthology," a collection of her short stories, has garnered four prestigious awards in 2023 for literary fiction and fiction anthologies and a Gold Award in 2024. Furthermore, her "Story of Josette and Daniel Trilogy" received the Literary Titan Gold Award in 2024, affirming her prowess as a storyteller.
Expanding her repertoire, Dr. Korkidis recently launched a new project aimed at readers aged 8-12, titled 'Dr. K’s Portal Through Time.' This series, nestled in her favorite genre of historical fiction, invites young minds to embark on time-traveling adventures, blending history with fun, accessible science. Each book in the series is accompanied by a Science Primer, designed to assist parents and teachers in fostering a deeper understanding of the scientific concepts woven into the narratives.
Today, Dr. Korkidis continues to inspire with her writings, blending her scientific background with her creative flair to explore the achievements in science through historical lenses. Her journey from a scientist and educator to a celebrated author encapsulates a life dedicated to learning, discovery, and artistic expression.



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